A sensor, also called a transmitter, is a device or device that converts a measured physical quantity into another physical quantity (usually electricity) that is convenient for transmission and processing. For example, a money detector is a relatively simple sensor. When the normal banknote is sent for inspection, the banknote detector detects the normal information on the banknote into a quantity of electricity and displays a normal inspection result. On the contrary, when the counterfeit banknote is sent for inspection, the banknote counter detects the abnormal information on the counterfeit banknote into a quantity of electricity, and displays an abnormal inspection result.
The enzyme sensor is a biosensor. A biosensor is a device that utilizes the amount of a substance generated or consumed by a biochemical reaction and is converted into an electrical signal by an electrochemical device to selectively measure a certain component. There are two methods for converting an electrochemical device into an electrical signal: a potential method and a current method.
The potential method refers to a method of further exhibiting various ion concentrations participating in the reaction according to potentials generated by various ions on the sensing film, and the required elements include an ammonia electrode, a hydrogen electrode, and a carbon dioxide electrode.
The current method refers to a method for detecting the concentration of a substance to be measured by a current value generated by a chemical reaction between positive and negative electrodes of an electrode active material (such as some ions), and an element having an oxygen electrode, a hydrogen peroxide electrode, or the like.
Biosensor based on the substance attached to the immobilized membrane
The enzyme sensor is a biosensor. A biosensor is a device that utilizes the amount of a substance generated or consumed by a biochemical reaction and is converted into an electrical signal by an electrochemical device to selectively measure a certain component. There are two methods for converting an electrochemical device into an electrical signal: a potential method and a current method.
The potential method refers to a method of further exhibiting various ion concentrations participating in the reaction according to potentials generated by various ions on the sensing film, and the required elements include an ammonia electrode, a hydrogen electrode, and a carbon dioxide electrode.
The current method refers to a method for detecting the concentration of a substance to be measured by a current value generated by a chemical reaction between positive and negative electrodes of an electrode active material (such as some ions), and an element having an oxygen electrode, a hydrogen peroxide electrode, or the like.
Biosensor based on the substance attached to the immobilized membrane
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